CVE-2025-6467 is a SQL Injection vulnerability identified in version 1.0 of the code-projects Online Bidding System, specifically affecting an unspecified portion of the /login.php file. The vulnerability arises from improper sanitization or validation of the 'User' parameter, allowing an attacker to inject malicious SQL code remotely without requiring authentication or user interaction. Exploiting this flaw could enable an attacker to manipulate backend database queries, potentially leading to unauthorized data access, data modification, or bypassing authentication mechanisms. The vulnerability has been publicly disclosed, increasing the risk of exploitation, although no confirmed active exploits have been reported in the wild to date. The CVSS 4.0 base score is 6.9, categorized as medium severity, reflecting the network attack vector, low complexity, no privileges or user interaction required, and limited impact on confidentiality, integrity, and availability. However, the potential for unauthorized access to sensitive bidding system data or user credentials could have significant consequences depending on deployment context. The lack of available patches or mitigation guidance from the vendor further elevates the risk for organizations using this software version.

For European organizations utilizing the code-projects Online Bidding System 1.0, this vulnerability poses a risk of unauthorized access to sensitive bidding and user data, which could lead to data breaches, fraud, or manipulation of bidding outcomes. The integrity of the bidding process could be compromised, undermining trust and potentially causing financial losses. Confidentiality breaches could expose personal or corporate information, violating data protection regulations such as GDPR. Availability impact is limited but could occur if attackers leverage the injection to disrupt login functionality or database operations. Organizations in sectors relying on online auctions or procurement platforms are particularly vulnerable. The public disclosure of the vulnerability increases the likelihood of targeted attacks, especially against entities with high-value bidding activities or sensitive procurement data. The absence of patches necessitates immediate risk management to prevent exploitation.

Given the absence of official patches, European organizations should implement immediate compensating controls. These include deploying Web Application Firewalls (WAFs) with custom rules to detect and block SQL injection patterns targeting the 'User' parameter in /login.php. Conduct thorough input validation and sanitization on all user-supplied data, especially login parameters, employing parameterized queries or prepared statements if source code access is available. Monitor application logs for suspicious login attempts or anomalous query patterns. Restrict database user privileges to the minimum necessary to limit the impact of potential injection. If feasible, isolate the vulnerable system within segmented network zones to reduce exposure. Organizations should also consider migrating to updated or alternative bidding platforms with secure coding practices. Regular security assessments and penetration testing focused on injection flaws are recommended until a vendor patch is released.